320242033 has 4 divisors (see below), whose sum is σ = 322011508. Its totient is φ = 318472560.

The previous prime is 320242031. The next prime is 320242081. The reversal of 320242033 is 330242023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330242023 = 101 ⋅3269723.

It can be written as a sum of positive squares in 2 ways, for example, as 141538609 + 178703424 = 11897^2 + 13368^2 .

It is a cyclic number.

It is not a de Polignac number, because 320242033 - 2¹ = 320242031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320242033.

It is not an unprimeable number, because it can be changed into a prime (320242031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 884466 + ... + 884827.

It is an arithmetic number, because the mean of its divisors is an integer number (80502877).

Almost surely, 2^320242033 is an apocalyptic number.

It is an amenable number.

320242033 is a deficient number, since it is larger than the sum of its proper divisors (1769475).

320242033 is a wasteful number, since it uses less digits than its factorization.

320242033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769474.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 320242033 is about 17895.3075693043. The cubic root of 320242033 is about 684.1627812990.

Adding to 320242033 its reverse (330242023), we get a palindrome (650484056).

The spelling of 320242033 in words is "three hundred twenty million, two hundred forty-two thousand, thirty-three".